气泵通过阀门把空气抽出去。
当盖子合上时，立刻会有一个阀门切断煤气。
A valve immediately shuts off the gas when the lid is closed.
阀门给卡住了打不开。
这个阀门调节水流。
一股股柴油从一个阀门喷涌而出，但另一个没有。
A spurt of diesel came from one valve and none from the other.
阀门无法关闭的原因可能是内部堵塞或故障。
The valve failing closed could be due to an internal blockage or failure.
阀门应该放在哪里？
这些美国瓦茨阀门绝不能用来提供“防烫伤”或“防冻伤”功能。
These WATTS valves should never be used to provide "anti-scald" or "anti-chill" service.
如果你闻到煤气味，关闭总阀门。
他们检查了100个完全相同的阀门。
留出阀门和清洁口的通道。
和一个连接它们的阀门。
减压阀指示灯熄灭，表明阀门当前已关闭。
The PORV light goes out, indicating that the valve is now closed.
介绍了陶瓷阀门的结构及其分类。
并不是所有塑料阀门都是相同的。
阀门事实上还开着。
加湿器可指定带有阀门或没有阀门。
我们需要一个有眼螺栓来固定这个阀门。
请记住，保险丝存在的理由就是作为一个安全阀门。
Remember that a fuse is an electrical safety valve that exists for a reason.
这个型号代表ANSI等级和所需阀门的种类。
This number represents the ANSI class and type of valve desired.
压力的阀门即将松开，而他们将首度看见未来希望的曙光。
The pressure valve is going to be released, and for the first time they are going to see a glimmer of hope for their future.
俄罗斯对此的反应时动用它钟爱的武器：天然气阀门。
Russia’s response is to reach for its favourite weapon: the gas taps.
阀门及其与管道连接的两个端口都必须得到支撑。
Both the valve and both ends of connecting pipeline must be supported.
这些阀门有四个或五个管道连接，通常称为端口。
These valves have four or five pipe connections, commonly called ports.
这种阀门只应该用在水泄漏不会造成损害的地方。
This valve should only be used in areas where spillage of water will not cause damage.
这种阀门能够双向应用，也可以应用在终端场合。
The valve can be used in either direction on dead end service.
了解这种阀门的位置和如何关闭流向热水器的水源。
Know the location of this valve and how to shut off the water to the heater.
了解这种阀门的位置和如何关闭流向热水器的水源。
Know the location of this valve and how to shut off the water to the heater.
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